Cutter-head.



H. G. AL

' CUTTER Patented D00. 30, 1913.

atto/:Mew

UNITED STATES PATENT OFFTC.

HARRY G. ALDRIDGE, OF ROCHESTER, NEW YORK, ASSIGNOR T0 HUTHER BROTHERSSAW MFG. CO., 0E ROCHESTER, NEW YORK, A CORPORATION OF NEW YORK.

CUTTER-HEAD.

Specification of Letters Patent.

Patented Dec. 30, 1913.

To all 'whom it may concern Be it known that I, HARRY G. ALDRIDGE, ofRochester, in the county of Monroe and State of -New York, have inventedcertain new and useful Improvements in Cutter- Heads; and I do herebydeclare the following to be a full, clear, and exact description of thesame, reference being had to the aecompanying drawings, forming a. parto-f this specification, and to the reference-numerals marked thereon.

My invention relates to a cutter head, being constructed moreparticularly for use on the mandrel of the ordinary saw table, and forsuch work as jointing treads and the like, sticking moldings, or windowsash, and it has for its object to provide a device that may bemanufactured at small cost, and which enables the tools to be adjustedand secured readily.

A further object of the invention consists in providing a constructionin which the tools are held rigidly in their operative positions withrespect to the head.

To these and other ends the invention consists in certain improvementsand combinations of parts all as will be hereinafter more fullydescribed, the novel features being pointed out in the claim at the' endof the specification.

In the drawings: Figure l is a side elevation of a cutter headconstructed in accordance with the invention. Fig. 2 is an elevation ofthe parts appearing in Fig. 1,look ing toward the same from the right.Fig. 3 is a vertical sectional view on the line a 321 of Fig. 2, andFig. 4 is a detail sectional view on theline fla-4a of Fig. 2.

Similar reference numerals in the several figures indicate the sameparts.

A designates the mandrel, such as is to be found on the usual saw table,and to which the head B may be secured in any convenient manner.

The head B, as disclosed in the present embodiment, consists o-f anintegral, square body, provided with tool supporting faces, designatedat 1 and 2, respectively. The tool supporting faces l and 2 areconstructed with guideways, or grooves, to receive the cutting tools,and these guideways are undercut preferably of dovetail formation incross section, the tools being similarly formed, and coperating with theguideways in the manner shown in Fig. 2. The guideways are shown at 8,being undercut at 4;, while 5 designate the cutting tools provided withthe inclined edges 6 which cooperate with the guideways as shown inFigs. 2 and 4.

In order to hold the tools in fixed position on the head, the latter isprovided with threaded openings which receive the headed bolts 7. Thecutting., tools are provided with slots or cutaway portions 8 throughwhich the bolts 7 pass into the cutter head, the tools being held inengagement by means of the heads 9 on the bolts which engage the outersurfaces of the tools.

In order to provide a convenient means for obtaining a quick andaccurate adjustment of the tools for different kinds of work, theguideways are provided with threaded recesses or openings 10, extendinglengthwise of their bottoms, and 1l are headless bolts movable in therecesses 10 as shown, and projecting slightly above the bottom surfacesof the guideways, as shown in Fig. 3. The adjusting bolts 11 project farenough above the bottom surfaces of the guideways to engage the ends ofthe cutting tools, and in this manner, by turning the bolts l1, thetools may be adjusted to any desired position relatively to the head,being held in such position by the aforementioned bolts 7 cooperatingwith the bolts 11, and with the inclined walls of the guideways. Thecutting tools may be adjusted to their desiredlpositions by any suitableform of gage as is well known in the art.

I claim as my invention.

The combination with a cutter head embodyinfr a square solid bodv havingoppositely disposed supporting faces provided with undercut guidewayscoextensive with said faces, of tools arranged in the guideways having across section corresponding therewith whereby movement of the toolsperpendicularly to the guideways is prevented, the bottoms of theguideways being provided with threaded recesses extendinglongitudinally, and having their axes arcoperating with said slots tohold the tools ranged below the bottoms of the guideways, 0n the head intheir adjusted relation. threadedbolts disposed insa-id recesses and t yhavingl comparatively `small portions pro-V HARRX G-ALDR1DGE' jecting"above the bottoms of the recesses so Witnesses:

as to engage the tools, the latter being prol H. E. STONEBRAKER vided*with slots or openings and the bolts HENRY 3' Copies of this patent maybe obtained for vmentsfesseln by;l addressing the Commissioner ofPatents.

WashingtonJl. G. Y

